packer_ubuntu.json: Rename packer_config.json

Rename packer_config.json to packer_ubuntu.json in order to
differentiate the config for FreeBSD and Ubuntu

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: I824ebe19865968af531ee327ce8ae40617680dcf
1 file changed
tree: 4c9004d89e5846abfbecce8a5342bcced84a8d17
  1. freebsd.sh
  2. packer_freebsd.json
  3. packer_ubuntu.json
  4. ubuntu.sh